Project: Reusing existing wells for CO2 storage operations

Acronym REX-CO2 (Reference Number: 299681)
Duration 01/09/2019 - 31/08/2022
Project Topic REX-CO2 will increase the technical feasibility and economic competitiveness of high-potential depleted hydrocarbon fields earmarked for CO2 storage. The specific objectives are: - Develop a publicly available well reuse screening tool which helps stakeholders to make informed decisions on the CCS reuse potential of certain wells or fields - Demonstrate the application of the developed tool to perform dedicated reuse assessment, including technical, ecological and economic aspects with candidate wells/fields from multiple international sites - Perform laboratory testing on relevant reuse risk scenarios, provide recommendations for (smart) material selection in reused wells; feed coupled thermo-hydraulic-mechanical-chemical (THMC) models and improve failure predictions - Provide guidance for the development of reuse permit applications - Gain an improved understanding on public acceptance and provide guidance on the socio-economic aspects of re-using oil and gas infrastructures
Project Results
(after finalisation)
The results of REX-CO2 are expected to facilitate large-scale CCUS implementation by providing a tool to evaluate and rank the CO2 reuse potential of hydrocarbon fields. The developed technology is not limited to a particular sector of CO2 storage but will accelerate all types of CCS. Key results will include: - Synthesised findings from developing a public reuse well screening tool for reusing existing hydrocarbon fields - Key findings in laboratory experiments , including well cement state of stress, material self-healing potential and implications for integrity of reused wells - Field scale numerical simulation results for different reuse field scenarios - Field case reuse studies for selected wells and depleted fields in all six partner countries - Assessment of public acceptance and recommendations for future projects involving well re-use for CO2 injection/storage - Development of technical and socioeconomic best practice recommendations for reusing existing wells for CO2 storage
Website visit project website
Network ACT
Call ACT Second Call

Project partner

Number Name Role Country
1 TNO Coordinator Netherlands
2 SINTEF Industry Partner Norway
3 RESTONE AS Partner Norway
4 IFP-EN Partner France
5 IKON Science Partner United Kingdom
6 GeoEcoMar Partner Romania
7 CO2Club Partner Romania
8 Los Alamos National Labotar Partner United States
9 British Geological Survey Partner United Kingdom
10 Chevron Partner United States
11 National Agency of Mineral Resources (NAMR) Partner Romania
12 BP Partner United Kingdom
13 Oil & Gas Authority Partner United Kingdom
14 EQUINOR ASA Partner Norway
15 EBN Partner Netherlands
16 IRO Partner Netherlands